Midlife in the United States

Midlife in the United States (MIDUS) is a national longitudinal study of health and well-being. It was
conceived by a multidisciplinary team of scholars interested in understanding aging as an integrated bio-psycho-social process. Since its inception
in 1995 MIDUS has continued to grow, such that it now includes data from over 10,000 individuals, comprising thousands of variables in different
scientific areas among distinct cohorts.

This website is a one-stop repository that provides MIDUS data and metadata (information about data) for exploration and analysis. Users can read
project abstracts, search for variables within or across datasets, download instruments, documentation, and codebooks, and download datasets from
the official MIDUS archive.

The MIDUS study and this repository are supported by multiple grants from the National Institute on Aging (5R37AG027343, 5P01AG020166,
1R03AG046312) and by the University of Wisconsin Institute on Aging. This repository is based on the
Data Documentation Initiative (DDI) metadata standard and is powered by
Colectica software. Please feel free to explore the repository and send any feedback or
questions to bradler@wisc.edu.

MIDUS 1

Project 1

In 1994/95, the MacArthur Midlife Research Network carried out a national survey of over 7,000 Americans aged 25 to 74.

In 2012 MIDUS began data collection on a new sample of African Americans in Milwaukee, designed to examine the health impacts of the economic recession and boost the number of racial minorities represented in MIDUS.